1966] 
Carpenter — Protorthoptera and Ortlioptera 
57 
position; it shows especially clearly the form of the individual lobes. 
The second specimen, which is the one originally figured by Tillyard, 
shows the thorax in a more symmetrical position. When Tillyard’s 
original photograph was made, plant fragments and other organic 
debris covered much of the thorax, obscuring the form of the para- 
notal lobes posteriorly. Subsequently, as shown in the photograph on 
plate 5, this debris was removed, presumably by Tillyard himself. 
The paranotal lobes are reddish-brown in color, like the true wings; 
the plant fragments and the debris are black, so that the two are 
more distinctive in the actual fossil than is apparent in a black-and- 
white photograph. In any event, I do agree that these paranota are 
not sufficient to justify the separation of the Lemmatophoridae from 
the Protorthoptera. 
In the preceding papers in this series, eight families of Protorthop- 
tera were considered : Lemmatophoridae, Probnidae, Liomopteridae, 
Chelopteridae, Stereopteridae, Demopteridae, Phenopteridae and 
Protembiidae. In the present paper three additional families are 
covered, the Strephocladidae, Blattinopsidae, and Tococladidae, and 
the Stereopteridae are discussed further, in the light of new material. 
Family Strephocladidae Martynov 
Strephocladidae Martynov, 1938, p. 100. 
Fore wing: coriaceous; precostal area absent; Sc well developed, 
extending to mid- wing or beyond, with several to many forked 
branches; Rs arising before mid-wing; Ri extending well towards 
apex, with several oblique branches leading to margin beyond Sc; 
Rs very well developed, with several to many long branches, usually 
without forks except for the branches in the apical part of the wing; 
M forked before origin of Rs, the anterior branch often touching Rs 
briefly or connected to it by a short, stout cross vein; M with sev- 
eral long branches, usually simple, independent of R basally, often 
touching CuA briefly or connected to it by a stout cross vein or pos- 
sibly by an anastomosed branch; Cu independent of M basally; CuP 
arising near base ; CuA directed longitudinally, giving rise to several 
long branches, usually simple; branches of Rs, M and CuA parallel 
and slightly sigmoidal ; CuP usually nearly straight, except near its 
distal end ; a distinct furrow posterior to CuA, very close and parallel 
to it; i A close and parallel to CuP; other anal veins irregular and 
Explanation of Plat® 5 
Lemmatophora typa Sellards, Photograph of specimen No. 5115, Peabody 
Museum, Yale University. 
